Joselu came off the bench to drag Newcastle out of even deeper relegation trouble and deny Swansea a major boost to their Premier League survival hopes.
The former Stoke striker, whose £5million signing in August was symbolic of manager Rafael Benitez's transfer window struggle, stabbed home a 68th-minute equaliser just four minutes after his introduction to cancel out Jordan Ayew's opener.
Newcastle dominated the first half, but squandered a series of chances and might have conceded a penalty before Ayew struck.
But on a day when defeat was simply not an option, they fought back to snatch a 1-1 draw which at least prevented bottom-of-the table Swansea from collecting three points for just the third time in 15 attempts.
Newcastle United 1-1 Swansea City
